Sucker-rod guide



May 4 1926. w. C. SMITH sUcKER non GUIDE AFiled sep-n. 12 1925 'Patented May 4, l1926. .Y

To all whom t may concern.'

NiTED si` f isaagztz ri-3s PAENT OFFICE.

WILLIAM c. siviiiii, or oonsioaivn,"trExAs streifen-Ron GUIDE.

Application filed -September Be it known that I, IVILLIAM C. SMITH, subject of Great Britain, residing at Corsicana, in the county of Navarro and State '1o certain'improvements in vthe typeof guideof4 Texas, have invented certain new Vand useful Improvements in Sucker-Rod Guides,

.of which the following is aspeciication.

This invention relates to new and useful improvements in sucker rod guides. lhe object of the invention is to provide shown in my copending application Ser. No. 103.

'A particular objectoftli'e invention is to pling downwardly from the shoulder so that A the bushing may be frictionally engaged thereon.

A construction designed to carry out the invention will behereinafter described together with other features of the invention.

The Yinvention will be more readily understood from a reading ofthe following specification and by reference to the accompany-v ing drawings. in which ain example ofthe invention is shown and wherein: Fig.` 1 is an elevation of a sucker rod equipped with a guide constructed in `accordance with my invention, the tubing being sho'wn in section, l

Fig. 2 is a vertical seotiona-l'view taken on the line 2-2 of Fig. 3, and

Fig'. 3 is a 4cross-sectional viewftaken on the line 3-3 of Fig. l.

or-othei` non-corrosive metal. The bushing has a diameter greatert-han-that ofthe sucker-rodcoupling on which it is used. Equally spaced channels or flutes 11 areprovided in the outer surface of the bushing andextend longitudinally .thereof,`providing suitable passages for the iiow ofliquid'.

The bushing has' a downwardly tapered axial bore 12 circular in cross-section. An

-and* alterations-may be madel within 'scope of the appended claims.

12, 1925. Serial No. 55,965.

elongated sucker' rod coupling has an axial bore 14 internally screw threaded lat Aits ends to receive the sucker iod sections A and B in the usual manner. At its upper end the coupling has any outwardly directed annular shoulder 15 which -overhangs downwardly tapered-shank 16. The pitch of the shank is such as to cause the bushing .to friotionally engage thereon when said bushing is driven up ,to the shoulder. This manner of fastening the bushing is very eliective and is more simple and ecopending c application'. bushing may be rounded so as not to catch on obstacles in the tubing. While it is necessary to reduce thc thickness of the coupling to receive the bushing, the structure when complete is verysubsta-ntial and compact. V'hen it is,v desired to replace the bushing it is merely necessary todrive .'oif the old one and drive on the new one. lThe bushing has an ample projection beyond the face 'of the shoulder 15 and ofcourse should be'r'eplaced before it weai's to the said shoulder. v

y Various changes inthe size and shape of' the different parts as well as modifications What I claim is:4

1. Iii-'a sucker rodguide, a cylindrical ex ternal bushing having a tapered axial bore,

a rod lcoupling having a tapered external nomical than the wedges employed in my co- The' ends 17 of the the portion'engaging frictionally in the bore of the bushing, and an 'integral shoulder on the coupling against which one end of the bushing is seated.

2. In a sucker rod guide, a rod coupling havingan integral annular shoulder at one end and a. reduced shank tapering from *the shoulder toward the opposite end of the couy pling, and an externally fluted bushing hav- In the drawings the numeral lOdesign ates an elongated cylindrical bushing, which ispreferably but not necssarily made of bronze ternally tinted bushing having a tapered bore extendingtherethrough, a rod .couplingl hav*- ing a tapered shank frictionally engaging in the bore of the bushing, and stationary with engaged by the bushing for taking the ii'pwardthrust of the bushing.

.means on lthe coupling and integral there- 

